Duplex bronzing and embossing process



- UNI ED STATES ATEN'r rricn.

JOHN onnson, on BROOKLYN, NEW YORK.

DUPLEX BRONZING AND EMB OSSlNG PROCESS.

SPECIFICATION forming part of Letters Patent No. 301,672, dated July 8,1884.

Application filed February 2, 1884.

To osZZ whom it may concern:

Be it known that I, J OHN CARSON, a citizen of the United States, and aresident of Brooklyn, county of Kings, State of New York, have embossinand it consists of a new method of producing such work whereby perfecteffects are obtained in a simple manner and at a low cost. ThisIaccomplish by making use of two qualities of size and applying thebronze or dry color to the paper, &c., at the time and during theprocess of embossing the same 5 and the invention embraces, incombination with the process of embossing and bronzing at one operation,bronzing on the fiat surface of the paper, &c. The size for the flatbronzing is laid by the surface type or die which lays the size for theembossed portion of the die.

The first part of my new process consists in printing on the part of thepaper, the, to be ing-die.

on which the oil or varnish size is printed before the same becomes dry.The said oil or varnish size takes out of the embossing-die all thebronze or dry color at the time the surface of the sized paper comes incontact with the intaglio surface of the die, by reason of the oil orvarnish size on the paper having moreadhesiveness than the water-size onthe die. By this means the whole of the embossed surface of the paper,&o., is covered with the bronze or dry color, and all danger of breaksorcracks in the bronzed surface is avoided, which in:- perfections oftenoccur in this class of work done by the ordinary process, in which thebronze is applied first to the paper and the (No specimens.)

embossing afterward performed. This old process limits the amount ofrelief which can be given to the paper, whereas by my new process' anyamount of relief the paper, &c., will stand may be given to it withoutany fear of imperfections in the bronzed or colored surface. Besides,the bronze or dry color has a much better effect applied to the paper asit is embossed than when it is applied thereto before the embossingprocess; and should any of the size on the paper extend beyond theoutline of the embossing-die none of the bronze or dry color adheres tothis part of the size,

' and I generally endeavor to use a size the color of the tint of thepaper, so that any imperfections of register are not seen.

When I combine flat bronzing or coloring with the embossed bronzing orcoloring process, the size for the flat bronzing or coloring is printedon the paper by the surface type or die, and the bronze or dry colorapplied in the ordinary way to said flat-sized surfaces after the raisedportions of the design are bronzed and embossed, as before described.Two or more colors may thus be used in one design, and, if desired,colors may be printed on the paper, 820., before theoil or varnish sizeis applied thereto, to form parts of the general design, so as toproduce varied and pleasing effects, it being understood that such coloror colors printed or parts to be bronzed in the fiat are not acted onbythe embossingdie.

'A great advantage of my new process is the speed at which this class ofwork in its most perfect form may be executed, as the printing of theoil or varnish size on the paper, 810., is done on an ordinaryprinting-press, and the bronzeembossing process performed while thispart of the process progresses, before the oil or varnish size sets onthe paper, so-that the various operations of the complete process areperformed simultaneously, enabling a job to be run off with greatfacility.

In some cases I have used simply water in the die, as all that isnecessary is to cause the bronze or dry color to adhere to the diesufficiently long to enable the embossing process to be performed. Anysuitable sizes may be used on the paper and die, the only necessaryconditions being that the size applied to the paper shall be moreadhesive than that applied to the die, so that the paper-size shall takeall the bronze or dry color from the diesize.

Having now described my invention, what I claim, and desire to secure byLetters Patent, 1s-

1. The improved process of bronze embossing which consists in printingon the paper in a size by means of a surface die or type then embossingand bronzing said sized sur face at one and the same operation by meansof an embossing-die in which the bronze or dry color is held by a sizeof less adhesiveness than the size on the paper, substantially as setforth.

2. As an improvement in the art of bronzing and embossing, printing thedesign on the paper in a size by means of a surface type or die, thenembossing and bronzing a portion of the design by'means of anembossing-die in which the bronze or dry color is held by a size of lessadhesiveness than the size on the paper, and completing the process byapplying bronze or dry color to the remainder of the design in the flat,substantially as set forth.

In testimony whereof I have hereunto set my hand, at New York, countyand State of New York, this 29th day of January, A. D.

- JOHN CARSON. Witnesses:

PHALEN Z. L. MARTIN, THos; MOMULLEN.

